US20230052223A1 - Service Processing Method and Apparatus and Device - Google Patents

Service Processing Method and Apparatus and Device Download PDF

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Publication number
US20230052223A1
US20230052223A1 US17/973,365 US202217973365A US2023052223A1 US 20230052223 A1 US20230052223 A1 US 20230052223A1 US 202217973365 A US202217973365 A US 202217973365A US 2023052223 A1 US2023052223 A1 US 2023052223A1
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US
United States
Prior art keywords
code block
service data
information
frame
otn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US17/973,365
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English (en)
Inventor
Wei Su
Qiuyou Wu
Yujie Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010544327.0A external-priority patent/CN113645524A/zh
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of US20230052223A1 publication Critical patent/US20230052223A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H04J3/1664—Optical Transport Network [OTN] carrying hybrid payloads, e.g. different types of packets or carrying frames and packets in the paylaod
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H04L25/4908—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0051—Network Node Interface, e.g. tandem connections, transit switching
    • H04J2203/0053—Routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0073—Services, e.g. multimedia, GOS, QOS
    • H04J2203/0082—Interaction of SDH with non-ATM protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0073—Services, e.g. multimedia, GOS, QOS
    • H04J2203/0082—Interaction of SDH with non-ATM protocols
    • H04J2203/0085—Support of Ethernet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H04J3/1658—Optical Transport Network [OTN] carrying packets or ATM cells

Definitions

  • the encoding the service data includes: performing 64b/66b encoding on the service data to obtain the encoded service data.
  • the service data is a 66b code block stream, there may be no need to perform 64b/66b encoding on the service data.
  • control information includes a code block type indication.
  • the code block type indication is used to indicate a code block type of a 257b code block.
  • the method further includes: adding a third code block pattern indication to the encoded service data, where the third code block pattern indication is used to indicate a pattern of a 66b code block included in a code block in which the third code block pattern indication is located, and a minimum Hamming distance between different values of the third code block pattern indication is 2.
  • FIG. 13 is another possible schematic diagram of a structure of a service processing apparatus according to an embodiment of this application.
  • Embodiments of this application are applicable to an optical network such as an OTN.
  • One OTN is usually formed by connecting a plurality of devices by using an optical fiber, and may constitute different topology types such as a linear topology, a ring topology, and a mesh topology based on specific requirements.
  • FIG. 1 is a possible schematic diagram of an OTN network architecture according to an embodiment of this application.
  • an OTN 200 includes eight OTN devices 201 , namely, devices A to H.
  • 202 indicates an optical fiber, configured to connect two devices.
  • 203 indicates a customer service interface, configured to receive or send customer service data.
  • One OTN device may have different functions based on an actual requirement.
  • a Hamming distance is used in a data transmission error control code.
  • the Hamming distance indicates different quantities of a corresponding bit in two words (of a same length), and d(x, y) is used to indicate a Hamming distance between two words x and y.
  • d(x, y) is used to indicate a Hamming distance between two words x and y.
  • an exclusive OR operation is performed on two strings, and a quantity of results that are 1 is counted.
  • the quantity is a Hamming distance. That a minimum Hamming distance is 2 means that a minimum value of a Hamming distance between two words of a same length is 2, in other words, a Hamming distance between two words of a same length is greater than or equal to 2.
  • the 66b code block stream when the 66b code block stream is encoded, the 66b code block stream may be further converted into a code block stream in another format through encoding, for example, encoded into a 513b code block stream or a 514b code block stream.
  • code block type information corresponding to the 257b code block mapped to the payload area of the OSUflex frame is mapped to the overhead area of the OSUflex frame.
  • 6-bit 257b_IND[5:0] is reserved in the overhead area of the OSUflex frame, and is specifically used to carry a code block type indication of the 257b code block.
  • 257b_IND[5:0] may also be referred to as an indication overhead, or may be referred to as another name. This is not limited in this application. If six 257b code blocks carried in the current OSUflex frame include start bytes of the six 257b code blocks, for example, as shown in FIG. 10 A and FIG.
  • the receive end performs CRC check processing on the control information based on the CRC information.
  • the check information is one or more backups of the control information, and the one or more pieces of control information in the check information are compared with the control information extracted from the overhead area to determine whether values are the same, to check the control information extracted from the overhead area.
  • Manner 2 Perform 256b/257b decoding on the encoded service data to obtain a 66b code block stream, and perform 64b/66b decoding on the 66b code block stream to obtain the service data.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Dc Digital Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
US17/973,365 2020-04-27 2022-10-25 Service Processing Method and Apparatus and Device Pending US20230052223A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN202010344926.8 2020-04-27
CN202010344926 2020-04-27
CN202010544327.0A CN113645524A (zh) 2020-04-27 2020-06-15 一种业务处理的方法、装置及设备
CN202010544327.0 2020-06-15
PCT/CN2021/087282 WO2021218639A1 (zh) 2020-04-27 2021-04-14 一种业务处理的方法、装置及设备

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/087282 Continuation WO2021218639A1 (zh) 2020-04-27 2021-04-14 一种业务处理的方法、装置及设备

Publications (1)

Publication Number Publication Date
US20230052223A1 true US20230052223A1 (en) 2023-02-16

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US17/973,365 Pending US20230052223A1 (en) 2020-04-27 2022-10-25 Service Processing Method and Apparatus and Device

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US (1) US20230052223A1 (ja)
EP (1) EP4135338A4 (ja)
JP (1) JP2023523982A (ja)
WO (1) WO2021218639A1 (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116600022A (zh) * 2023-07-17 2023-08-15 成都数维通信技术有限公司 一种通用式工控网络通信协议构建方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8340134B1 (en) * 2009-11-04 2012-12-25 Pmc-Sierra, Inc. Method and system for controlling count information in generic mapping procedure
US8392788B2 (en) * 2009-11-24 2013-03-05 Cortina Systems, Inc. Transport network system with transparent transport and method of operation thereof
CN111147185A (zh) * 2015-01-22 2020-05-12 华为技术有限公司 一种利用以太网信道传输业务信号的方法及通信设备
CN106301678B (zh) * 2015-06-08 2020-02-14 华为技术有限公司 一种数据处理的方法、通信设备及通信系统
CN107086897A (zh) * 2016-02-14 2017-08-22 中兴通讯股份有限公司 纠错处理方法及装置
EP3429138A4 (en) * 2016-04-08 2019-03-13 Huawei Technologies Co., Ltd. APPARATUS AND METHOD FOR DETECTING DEFECT
US10985847B2 (en) * 2017-12-21 2021-04-20 Cisco Technology, Inc. Security over optical transport network beyond 100G
CN109981209B (zh) * 2017-12-28 2022-01-28 中兴通讯股份有限公司 光传送网中业务发送、接收方法及装置
CN111713117B (zh) * 2018-02-09 2022-04-12 华为技术有限公司 一种光传送网中业务数据的处理方法及装置
CN110557217B (zh) * 2018-06-01 2021-08-03 华为技术有限公司 一种业务数据的处理方法及装置

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Publication number Publication date
EP4135338A1 (en) 2023-02-15
WO2021218639A1 (zh) 2021-11-04
EP4135338A4 (en) 2023-10-11
JP2023523982A (ja) 2023-06-08

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